Branding & Trims Developer

Role: Branding & Trim Developer

Reports into: Head of Buying

Contract Type: Full Time, working 7.5 hours per day, 5 days per week

Location: Hybrid, working 3 days a week in our offices based in Old Street, London

About Us

Nothing is clearer to us than the belief that every woman should include strength training in her life to enhance both physical and mental well-being. It's about building strong bodies and even stronger minds, asserting their right to take up space in the gym, and allowing the spotlight to shine bright on their progress.

To us, strength training represents a determined, goal-oriented mindset and an unwavering work ethic. We don't wait for success; we create it through hard work and determination. When faced with challenges, we don't back down; instead, we break through barriers, recognising that true progress lies on the other side.

These are the pillars that form the foundation of Oner Active. We consistently challenge ourselves to create innovative and impactful products, so that you can perform better. With our range of products and innovative approach, we provide a wide variety of colours to ensure that all skin tones genuinely radiate in Oner.

Our Purpose and Mission

We are on a mission to unite and empower women to be the strongest version of themselves through strength training. We want to inspire women to take centre stage in the gym by promoting strength training, which underpins all movement and sport, as a healthy foundation in life. 

Our Benefits

• 25 days annual leave + bank holidays and work from anywhere up to 4 weeks a year

• 5% employer match salary sacrifice pension scheme

• Generous Oner Active discount plus regular office sample sales

• Free Evolve You subscription

• Private Healthcare with Vitality including optical and dental

• Monthly wellness allowance and team workout classes

• Start-up culture - the chance to learn and make a real impact

• Great employee events like our Summer party, Christmas party and team away days

• Healthy office snacks and fruit (plus a chocolate cupboard for a sweet treat for the balance)

• Dog friendly office

The Role:

As a Branding & Trim Developer at Oner Active, you’ll play a key role in shaping the identity and quality of our products through innovative trims and branding design. Working alongside the product team you’ll develop and deliver trims and branding components that embody the Oner Active DNA. You’ll lead the end to end process from concept to bulk production in line with the critical path requirements.

You’ll be responsible for:

• Designing and developing new trims and branding concepts, including badges, woven and heat-transfer labels, zipper pullers, metal hardware, drawcord tips, and other decorative or functional details.

• Interpret the creative direction and branding guidelines and develop production-ready, fit for purpose trims.

• Collaborate with the design team to explore innovative materials, finishes, and techniques that enhance product aesthetics and functionality.

• Manage the full trim approval process, from sampling and testing to final production sign-off.

• Ensure all branding and trims deliver consistent colour, quality, and performance across all product categories.

• Maintain and evolve the Oner Active trim and branding library, documenting all approved items and supplier specifications.

• Partner with global suppliers to source and develop sustainable, compliant materials that pass the test of time.

• Conduct and review physical and chemical testing requirements globally (e.g., durability, wash performance, colourfastness, and safety).

• Work cross-functionally with the tech, design and buying teams to ensure trims integrate with fabrics and garment construction and hit the critical path dates.

• Research and propose new ideas/technologies for trims, branding finishes, and application methods to keep Oner Active at the forefront of innovation.

You’ll need to have:

• Degree in Fashion Technology, Product Design, Textile Design, or related field.

• Proven experience in trim and branding design and development within fashion, sportswear, or performance apparel.

• Strong understanding of trims manufacturing methods, including heat transfers, injection moulding, silicone, TPU, woven labels, and metal or plastic hardware

• Knowledge of sustainable materials, trims innovation, and compliance standards (REACH, RSL, Oeko-Tex, GRS).

• Proficiency in Adobe Illustrator and Photoshop for artwork creation and technical drawings.

• Excellent eye for detail, colour, and finish, with a strong understanding of brand identity and product aesthetics.

• Highly organised, capable of managing multiple projects and tight timelines.

• Excellent communication skills and confidence when liaising with suppliers and cross-functional teams.

Equality, Diversity, and Inclusion:

At Oner Active it’s about embracing diversity and empowering every individual to reach their full potential. We are committed to creating an environment where everyone feels valued, supported, and able to thrive.

We welcome applications from all backgrounds and are dedicated to ensuring that everyone has equal access to opportunities during the recruitment process. If you require any reasonable adjustments or additional support, we encourage you to reach out to our Recruitment team — we’re here to support you every step of the way.